Describe the mechanics of breathing which cause inspiration at rest. (3)

The External intercostals contract and the diaphragm flattensPulling the thoracic cavity up and out This then increases the volume of the thoracic cavity, Causing a reduction of pressure in the lungs compared to atmospheric pressure.This produces airflow down the pressure gradient from an area of high to low pressure and into the lungs.

BS
Answered by Becky S. Physical Education tutor

2987 Views

See similar Physical Education A Level tutors

Related Physical Education A Level answers

All answers ▸

Name the 3 types of muscle fibres and explain the role of each.


Explain why a skill may be classified as open?


How do the arm muscles work to flex the elbow?


Name the seven coordination motor abilities


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences